股票技巧大全2015
Add to Favorite   Contact Us   Chinese   English
 
   
  Products List
ff
  Contact Us
Address:No. 9, Road 13, Fuxin Economic Development Zone, Fuxin, Liaoning, P. R. China

Postcode: 123000

Tel: 86-418-6515727

Fax: 86-418-2921441

Email: [email protected]

 
 Strengths

Our prospect is to develop large wind turbine controllers and grid cut-in instruments with autonomous intellectual property rights, by mean of learning advanced industrial controller technologies from foreign companies such as Bachmann and Beckhoff

Optimum TipSpeed-Ratio (TSR) Control
When below rated wind speed, adjusts rotor speed according to wind speed, control the ratio between rotor tip speed and wind speed, in order to achieve high wind energy utilization rate.
Optimum Pitch Angle Control

When above rated wind speed, adjust pitch angle according CP curve, in order to increase stability and safety of wind turbine.
Independent Pitch Control

Full swept area pitch control, reduce periodic stress impact of the blades, increase stability of loads of the wind turbine and lifespan of the blades.
• Self-Adapted Control of the Blades
 Reduce the demand of accuracy of complicated blade element calculation, adapted to distributed error during manufacturing of the blades.
• Elastic Blade Control
Automatic real-time monitoring of the pitch torque, adjust pitch angle when the torque exceeds because of wind shear in order to reduce impacts to loads of the wind turbine.
• Flexible Yaw Control Yawing driven by master-slave torque converter, reduce yawing impact and increase lifespan of the yawing bearing and motors.
• Low-Noise Operation
The above mentioned optimizing technologies guarantee the implementation of flexible pitch and yaw control and thus low-noise operation. 
• Low-Voltage Ride Through (LVRH) 
Optimizing converter configure, lowering power loss of DC bus, adjustable reactive power, insuring grid-connection during low voltage and satisfying grid codes.
• Modular Program Structure and Universal Communication Interface 
Easy maintenance comes with universal communication interface and variable tables. 
• Modular Cabinet
Easy manufacturing and maintenance come with standard modular cabinet design. 
• Main Control System
Main control system is designed according to currently mainstream circuit topology, which can be optimized depending on practical control requirements and existing problems. With nacelle controller and tower base controller separated, embedded controllers with different brands and a variety of internal buses are supported. Remote supervision is implemented based on RTU database server installation and optical ring network access. 
• Pitch Control System 
With “3+1” or “6+1” complete structure proposal as the system structure, permanent-magnet AC/DC/variable-frequency motors as drivers and the capability of closing pitch at all faults as the standard of safety chain, the pitch control system is ready for low-voltage ride through (LVRH) with LVRH levels definable.
• Power Converting System 
Employing VACON products; Both air-cooled and water-cooled structures are supported; open programming platform; modular unit structure are designed to implement smart power combinations; all kinds of field bus protocols are supported; adapted to order to both doubly-fed induction generators (DFIG) and permanent magnet synchronous motors; equipped water-cooled system which is capable of cooling down motors, Gearboxes and converters.
• Affordable Machines: 
30-100kW variable pitch horizontal-axis wind turbine (HAWT) 
30-100kW vertical-axis wind turbines (VAWT) 
500-800kW Stall-regulated horizontal-axis wind turbine (HAWT)
1.0-3.0MW variable speed constant frequency (VSCF) doubly-fed or permanent-magnet horizontal-axis wind turbine (HAWT)
• Affordable Units for Electrical Control System:
Main control cabinet, nacelle cabinet, pitch control system, power converting system, main switch cabinet, SCADA system and water-cooling system; system design, software developing, complete manufacturing and on-site commissioning are also provided.
 

 

Copyright:© Liaoning Liksun Wind Power Co., Ltd.2010    正在備案中
Phone:0418-2924790  E-mail:[email protected]  address:No. 9, Road 13, Fuxin Economic Development Zone, Fuxin, Liaoning, P. R. China 
股票技巧大全2015 竞彩篮球大小分 江苏快三 武汉特殊服务 荣立通配资 贵阳按摩价格 广东十一选五开奖历 tcl股票 东莞一条龙桑拿服务 河南11选5结果 中首投资 麻将技巧视频 3d独胆专家预测 江西快3 腾讯棋牌红中麻将来了 中原风彩22选五今晚 幸运赛车